Steel Tie Rod Application And Finite Element Analysis Of The Large-Span Steel Truss Structure Design

Along with the rapid development of economic construction in our country,rooms for storage and production of enterprise are been built larger still, and thefactory site built in steel structural frame will be used by various manufacturerswith its advantages of high strength, light dead load, large span, convenienthoisting in the construction, and short period of the construction and low cost.This paper takes the factory site building on large span in the industrialzone of Juli group as the project background. Besides using truss structure withround steel pipe on large span, the project also applies the steel tie rod made inthat group. This paper combines the design with the theoretical research, andcarries on the finite element analysis, optimal structure design of the structure invarious aspects and through using the steel tie rod, we can realize the purposes ofto reduce the structure steel used in quantity, and reduce the overall constructioninvestment.The main works we conduct are as follows:(1)Make analysis to the six kinds of large span truss schemes settled in thepreliminary plan and draw the envelop diagram with bending moment, andcombined with the usage requests of the construction unit, we finally choose themost cost-saved and most optimal scheme.(2)Use the universal large software ANSYS on finite element analysis tocalculate and analyze the selected structure scheme. According to the standardrequirement and from hundreds of combination of work condition we can choosefive work conditions under control in effect for applying to the steel truss, anddraw the deformation figure, and get the maximum displacement. At the sametime, we can also calculate the internal force of the rod piece, and draw the clouddiagram to show its internal force. According to the deformation diagram ofANSYS and cloud diagram showing the internal force, we can review thestructure safety of the steel truss which should meet the national standards andthe usage requirement of the construction unit.(3)According to the calculation results, we can compare the role that thesteel tie rod can play in the structure with stress. Result shows that by using thesteel tie rod, the structure steel used in quantity by steel tube truss structure on large span can be reduced by about10%indeed as to reach the purpose of toreduce the construction investment.